12"W X 6"H [Duct Opening] Never Rust Plastic 2-Way-Vertical Air Supply Register - HVAC Vent Duct Grille - Off White [Outer Dimensions: 13.75"W X 7.75"H] 18" Round Duct Pipe pair it with our butterfly

pair it with our butterfly dampers

High Quality – Huge middle compartment stores all your bigger gear and power tools

making it an essential gear for your toolkit

compatible with duct 10"

+ Product Details Size & Compatibility – The 7" galvanized steel metal stick on take-off is compatible with duct 7"

12"W X 6"H [Duct Opening] Never Rust Plastic 2-Way-Vertical Air Supply Register - HVAC Vent Duct Grille - Off White [Outer Dimensions: 13.75"W X 7.75"H] 18" Round Duct Pipe pair it with our butterfly+ Product Details Size 12"w X 6"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 13. 75" width X 7. 75" height. Design Rigid gauge ABS plastic. Rigid gauge built for durability and long life in mind, but still light and handy. Powder coat finish. Smooth, scratch resistant, beautiful. Looks like new after years of use. Screws Included High Quality High quality ABS plastic will never rust, no sharp